Study about the third booster varicella vaccination

Study about the third booster varicella vaccination in children with primary vaccine failure after routine two-dose varicella vaccination - The third booster varicella vaccination after routine two-dose varicella vaccination

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059193

Enrollment

Registered

2025-09-25

Start date

2025-10-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

varicella

Interventions

For the children that the agreement of the protector was obtained, we conduct blood sampling for measurement of anti-VZV antibody. We do booster varicella vaccination to children with less than 16 of

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The children who came to this hospital for the purpose of the second MR vaccination and had received routine two-dose varicella vaccination in this hospital, and the children that protectors agreed to the study

Exclusion criteria

Exclusion criteria: The children of non-enforcement of antibody measurement before and after the two routine varicella vaccinations, and the children that the third booster varicella vaccination is inappropriate

Design outcomes

Primary

Measure	Time frame
Comparison of the both antibody titers before and after the third booster varicella vaccination	—

Secondary

Measure	Time frame
1) Anti-VZV IAHA and gpELISA antibody titers after routine two-dose varicella vaccination 2) Incidence of clinical reactions for 4 weeks after the third booster varicella vaccination	—

Countries

Japan

Contacts

Public ContactNaoko Nishimura

Konan Kosei Hospital Department of Pediatrics

naon@konan.jaaikosei.or.jp0587-51-3333

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026